Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
22-04-2024 19:26
Behavioral task
behavioral1
Sample
2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe
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Size
27KB
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MD5
2b11872b7e3ddc4e96682e597e406ac8
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SHA1
5f045aa9c4a5c46b96a85f5c382d33427e98b4cf
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SHA256
df5a7564ad18463b2dafc86631ae4a120423a17efc32977532b41aac6b83febf
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SHA512
19d6dc254d0bb54d42a0cc11e861fa2e0fd69793a3e8f67332d8f6d8debb9a88c808c3bca4dd8caa2c5c21c9b5c1c182d97ab64c08c0c62ac8c186d64a201269
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SSDEEP
384:xtWZPzzxAm1vFzaGh2r7OUmgFRYfdQPyRlZOy5o91Tecv82v4:47zxAmuGUrEgnYwWho95eI82w
Malware Config
Extracted
C:\Users\Admin\AppData\Local\read_it.txt
1FcQuP9kvbQDuvwFxj6aguLBVvnfwbv5R2
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
resource yara_rule behavioral1/memory/1756-0-0x0000000000D30000-0x0000000000D3E000-memory.dmp family_chaos behavioral1/files/0x000c000000012248-6.dat family_chaos behavioral1/memory/3040-8-0x0000000000850000-0x000000000085E000-memory.dmp family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Detects command variations typically used by ransomware 3 IoCs
resource yara_rule behavioral1/memory/1756-0-0x0000000000D30000-0x0000000000D3E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware behavioral1/files/0x000c000000012248-6.dat INDICATOR_SUSPICIOUS_GENRansomware behavioral1/memory/3040-8-0x0000000000850000-0x000000000085E000-memory.dmp INDICATOR_SUSPICIOUS_GENRansomware -
Detects executables containing many references to VEEAM. Observed in ransomware 3 IoCs
resource yara_rule behavioral1/memory/1756-0-0x0000000000D30000-0x0000000000D3E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/files/0x000c000000012248-6.dat INDICATOR_SUSPICOUS_EXE_References_VEEAM behavioral1/memory/3040-8-0x0000000000850000-0x000000000085E000-memory.dmp INDICATOR_SUSPICOUS_EXE_References_VEEAM -
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 2876 bcdedit.exe 2976 bcdedit.exe -
pid Process 1676 wbadmin.exe -
Disables Task Manager via registry modification
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Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Btc.exe -
Executes dropped EXE 1 IoCs
pid Process 3040 Btc.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateTask = "C:\\Users\\Admin\\AppData\\Roaming\\Btc.exe" Btc.exe -
Drops desktop.ini file(s) 64 IoCs
description ioc Process File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\87XXOISN\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\History\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini Btc.exe File opened for modification C:\Users\Public\Recorded TV\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\JSZQNXMR\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Burn\Burn\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini Btc.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Ringtones\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Documents\desktop.ini Btc.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2297530677-1229052932-2803917579-1000\desktop.ini Btc.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\O29M4VT2\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Games\Desktop.ini Btc.exe File opened for modification C:\Users\Public\Pictures\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini Btc.exe File opened for modification C:\Users\Public\Documents\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Music\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Btc.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\FXU0E4DR\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\NQ9N4B3U\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini Btc.exe File opened for modification C:\Users\Public\Downloads\desktop.ini Btc.exe File opened for modification C:\Users\Public\Libraries\desktop.ini Btc.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\HKGE1S7K\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\CYXNIRQN\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Btc.exe File opened for modification C:\Users\Public\Recorded TV\Sample Media\desktop.ini Btc.exe File opened for modification C:\Users\Public\Videos\desktop.ini Btc.exe File opened for modification C:\Users\Admin\Links\desktop.ini Btc.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Btc.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini Btc.exe File opened for modification C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini Btc.exe File opened for modification C:\Users\Public\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\6QIBR00Y\desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Accessories\Tablet PC\Desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini Btc.exe File opened for modification C:\Users\Public\Desktop\desktop.ini Btc.exe File opened for modification C:\Users\Public\Music\desktop.ini Btc.exe File opened for modification C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Stationery\Desktop.ini Btc.exe File opened for modification C:\Users\All Users\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini Btc.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini Btc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 2740 vssadmin.exe -
Opens file in notepad (likely ransom note) 1 IoCs
pid Process 2776 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 3040 Btc.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 3040 Btc.exe 3040 Btc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeDebugPrivilege 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe Token: SeDebugPrivilege 3040 Btc.exe Token: SeBackupPrivilege 2608 vssvc.exe Token: SeRestorePrivilege 2608 vssvc.exe Token: SeAuditPrivilege 2608 vssvc.exe Token: SeIncreaseQuotaPrivilege 2200 WMIC.exe Token: SeSecurityPrivilege 2200 WMIC.exe Token: SeTakeOwnershipPrivilege 2200 WMIC.exe Token: SeLoadDriverPrivilege 2200 WMIC.exe Token: SeSystemProfilePrivilege 2200 WMIC.exe Token: SeSystemtimePrivilege 2200 WMIC.exe Token: SeProfSingleProcessPrivilege 2200 WMIC.exe Token: SeIncBasePriorityPrivilege 2200 WMIC.exe Token: SeCreatePagefilePrivilege 2200 WMIC.exe Token: SeBackupPrivilege 2200 WMIC.exe Token: SeRestorePrivilege 2200 WMIC.exe Token: SeShutdownPrivilege 2200 WMIC.exe Token: SeDebugPrivilege 2200 WMIC.exe Token: SeSystemEnvironmentPrivilege 2200 WMIC.exe Token: SeRemoteShutdownPrivilege 2200 WMIC.exe Token: SeUndockPrivilege 2200 WMIC.exe Token: SeManageVolumePrivilege 2200 WMIC.exe Token: 33 2200 WMIC.exe Token: 34 2200 WMIC.exe Token: 35 2200 WMIC.exe Token: SeIncreaseQuotaPrivilege 2200 WMIC.exe Token: SeSecurityPrivilege 2200 WMIC.exe Token: SeTakeOwnershipPrivilege 2200 WMIC.exe Token: SeLoadDriverPrivilege 2200 WMIC.exe Token: SeSystemProfilePrivilege 2200 WMIC.exe Token: SeSystemtimePrivilege 2200 WMIC.exe Token: SeProfSingleProcessPrivilege 2200 WMIC.exe Token: SeIncBasePriorityPrivilege 2200 WMIC.exe Token: SeCreatePagefilePrivilege 2200 WMIC.exe Token: SeBackupPrivilege 2200 WMIC.exe Token: SeRestorePrivilege 2200 WMIC.exe Token: SeShutdownPrivilege 2200 WMIC.exe Token: SeDebugPrivilege 2200 WMIC.exe Token: SeSystemEnvironmentPrivilege 2200 WMIC.exe Token: SeRemoteShutdownPrivilege 2200 WMIC.exe Token: SeUndockPrivilege 2200 WMIC.exe Token: SeManageVolumePrivilege 2200 WMIC.exe Token: 33 2200 WMIC.exe Token: 34 2200 WMIC.exe Token: 35 2200 WMIC.exe Token: SeBackupPrivilege 2376 wbengine.exe Token: SeRestorePrivilege 2376 wbengine.exe Token: SeSecurityPrivilege 2376 wbengine.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1756 wrote to memory of 3040 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 28 PID 1756 wrote to memory of 3040 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 28 PID 1756 wrote to memory of 3040 1756 2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe 28 PID 3040 wrote to memory of 2572 3040 Btc.exe 29 PID 3040 wrote to memory of 2572 3040 Btc.exe 29 PID 3040 wrote to memory of 2572 3040 Btc.exe 29 PID 2572 wrote to memory of 2740 2572 cmd.exe 31 PID 2572 wrote to memory of 2740 2572 cmd.exe 31 PID 2572 wrote to memory of 2740 2572 cmd.exe 31 PID 2572 wrote to memory of 2200 2572 cmd.exe 34 PID 2572 wrote to memory of 2200 2572 cmd.exe 34 PID 2572 wrote to memory of 2200 2572 cmd.exe 34 PID 3040 wrote to memory of 2760 3040 Btc.exe 36 PID 3040 wrote to memory of 2760 3040 Btc.exe 36 PID 3040 wrote to memory of 2760 3040 Btc.exe 36 PID 2760 wrote to memory of 2876 2760 cmd.exe 38 PID 2760 wrote to memory of 2876 2760 cmd.exe 38 PID 2760 wrote to memory of 2876 2760 cmd.exe 38 PID 2760 wrote to memory of 2976 2760 cmd.exe 39 PID 2760 wrote to memory of 2976 2760 cmd.exe 39 PID 2760 wrote to memory of 2976 2760 cmd.exe 39 PID 3040 wrote to memory of 1128 3040 Btc.exe 40 PID 3040 wrote to memory of 1128 3040 Btc.exe 40 PID 3040 wrote to memory of 1128 3040 Btc.exe 40 PID 1128 wrote to memory of 1676 1128 cmd.exe 42 PID 1128 wrote to memory of 1676 1128 cmd.exe 42 PID 1128 wrote to memory of 1676 1128 cmd.exe 42 PID 3040 wrote to memory of 2776 3040 Btc.exe 47 PID 3040 wrote to memory of 2776 3040 Btc.exe 47 PID 3040 wrote to memory of 2776 3040 Btc.exe 47 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-22_2b11872b7e3ddc4e96682e597e406ac8_destroyer_wannacry.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Users\Admin\AppData\Roaming\Btc.exe"C:\Users\Admin\AppData\Roaming\Btc.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2572 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2740
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2200
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:2760 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2876
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2976
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:1676
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
PID:2776
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2608
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2376
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2044
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:1508
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
619B
MD5121dd6796c66c39da573dc7e2f8154ad
SHA1c9e14ba00f49428e79ff9a4ad621f9afdb5e2ad5
SHA2562252da15981065c0046d5d881e69a5c0205391ad6837442c1df623868aadff21
SHA51204f882ce194313ee3e166a0a1cde7401c42a36600829eebacca136b87eb01bbf68a70c3ad895f7ba804968bc1f53fd61d50dbf77ab3accd7f84e123fe6c5ec16
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Filesize
27KB
MD52b11872b7e3ddc4e96682e597e406ac8
SHA15f045aa9c4a5c46b96a85f5c382d33427e98b4cf
SHA256df5a7564ad18463b2dafc86631ae4a120423a17efc32977532b41aac6b83febf
SHA51219d6dc254d0bb54d42a0cc11e861fa2e0fd69793a3e8f67332d8f6d8debb9a88c808c3bca4dd8caa2c5c21c9b5c1c182d97ab64c08c0c62ac8c186d64a201269
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Filesize
1B
MD5d1457b72c3fb323a2671125aef3eab5d
SHA15bab61eb53176449e25c2c82f172b82cb13ffb9d
SHA2568a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1
SHA512ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0